Pilot Error May Have Caused Russian Plane Crash, Investigators Say

Investigators say the crash of a Russian passenger plane that killed all 71 people on board may have been caused by the pilots' failure to activate heating for pressure measurement equipment, resulting in flawed speed data.

Source : http://www.latimes.com/world/la-fg-russia-crash-error-20180213-story.html

Pilot error may have caused Russian plane crash, investigators say
Russia: Plane crash caused by pilots' error on speed data
Russia Saratov crash: Ice on sensors 'may be cause'
Pilot Error or Mechanical Failure Most Likely Caused Plane Crash in Russia, Investigators Say
Russia plane crash may have been caused by speed-indicator failure due to icing, investigators say
Frozen speed sensors may have caused Russian plane crash, investigators say
Russian plane crash may have been caused by human error, faulty sensor
What Caused Russian Tu-154 Plane Crash? Pilot Error Or Technical Fault Likely To Blame
At Root of Russian Crash: Something Pilots Forgot
Russia: Plane crash caused by pilots' error on speed data